I thought Pineapple Express and Lemon Skunk smelled really nice. Be careful of other skunks though. Some of the kush can be stinky also.
The key is constant venting. And getting a good carbon filter works also. I made a carbon filter using a $50 honeywell tabletop aircleaner. What I did is form a box exactly the size of the front of the air cleaner, where the air is sucked in. I put a couple of inches of carbon pellets - that I bought online - in the bottom. Now I put the air cleaner on top and duct taped the the box to the air cleaner, so the air has to come through the carbon pellets. Works good and was cheap. I am also lucky in that my main room has a vent to the outside. I installed a big slow 140mm fan so it is constantly venting. I run all my grow room computer fans with a little computer power supply. Even before I had these air cleaner methods, I would leave the door closed and when I came home, I stood outside the door and I could not smell anything. When I opened the door, it stunk bigtime. So I don't think it travels through walls and stuff.